Systemic sclerosis & Raynaud's

Systemic sclerosis in Israel clinical characteristics, ethnic and spatial disparities: A nationwide study

Semin Arthritis RheumPublished Nationwide epidemiologic and ecological study

Authors' conclusion

SSc prevalence in Israel is among the highest reported worldwide and shows marked spatial clustering. Ethnic differences vary after accounting for spatial dependence, with consistently high prevalence in Druze localities.

Study context

Population
Clalit Health Services members across Israeli localities
Comparison
Druze and Arab vs Jewish localities
Outcome
SSc prevalence, incidence and mortality; ethnic and geographic patterns
Methodological detailsspatial autocorrelation (Moran's I, Local Indicators of Spatial Association (LISA)), negative binomial regression, Bayesian spatial Poisson models, adjusted for socioeconomic status (SES)
  • Spatial autocorrelation (Moran's I, LISA)
  • Negative binomial regression
  • Bayesian spatial Poisson models
  • Adjusted for SES

Main finding

As reported in the abstract

SSc prevalence, incidence, mortality
Prevalence in 2000 (per million)
107
Prevalence in 2023 (per million)
627
Incidence, stable (per 100,000/year)
≈2.8-3. 9
Standardized mortality rate
2.88
Spatial autocorrelation of prevalence, Moran's I (p < 0.001); clusters in northern Israel
0.065

Further findings

OutcomeRR (95% CI)
SSc prevalence by locality ethnicity, after spatial adjustmentArab localitiesvs Jewish localities0.78 (0.64–0.94)
OutcomePRR (95% CI)
SSc prevalence by locality ethnicity, non-spatial modelsDruze localities vs Jewish localities1.45 (1.04–2.01)

Systemic sclerosis (SSc) prevalence by locality ethnicity, non-spatial models

Arab localities did not differ from Jewish localities

SSc prevalence by locality ethnicity, after spatial adjustment

Druze localities showed the highest prevalence

SES and SSc prevalence

Higher SES associated with increased prevalence

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Systemic sclerosis in Israel clinical characteristics, ethnic and spatial disparities: A nationwide study. Semin Arthritis Rheum. Published 13 September 2026. doi:10.1016/j.semarthrit.2026.153077

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.